John Duff Limited

John Duff Limited is a custom metal fabricating company in Sarnia-Lambton with over 50 years of experience producing both production runs and one-off fabrications in mild steel, stainless steel, aluminum, copper, and brass. The shop provides shearing, forming, rolling, break forming, CNC Hi-Def plasma cutting (capable of cutting up to 2.5-inch material), specialty aluminum and stainless welding with CWB W47.1 and W47.2 certifications, and manufactures items such as stairs, railings, ductwork, truck modifications, and made-to-order pipe clamps for industrial, construction, manufacturing, commercial, and agricultural clients.